Polarization radar target recognition based on curve fitting under the least square criterion using improved simulated annealing algorithm

The conception of PSD (polarization states' distance) is presented to describe the dynamic characteristic of radar target's polarization structure in the frequency domain on the polarimetric and high-resolution radar system. An improved simulated annealing algorithm is presented to estimate the global optimal parameters of fitting curves of target's dynamic distribution. On this basis, a recognition experiment has been made on four kinds of aircraft, and good results are achieved.